From: xie xingguo <xie.xingguo@zte.com.cn>
Date: Tue, 1 Nov 2016 08:08:59 +0000 (+0800)
Subject: os/bluestore: add sanity check when compress_extent_map()
X-Git-Tag: v11.1.0~459^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F11718%2Fhead;p=ceph.git

os/bluestore: add sanity check when compress_extent_map()

Signed-off-by: xie xingguo <xie.xingguo@zte.com.cn>
---

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index 23b13bda06c..b437135be5e 100644
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -2072,6 +2072,7 @@ int BlueStore::ExtentMap::compress_extent_map(uint64_t offset, uint64_t length)
       break;
     }
     if (n->logical_offset >= shard_end) {
+      assert(pshard != shards.end());
       ++pshard;
       if (pshard != shards.end()) {
 	shard_end = pshard->offset;